|
| 1 | +package vcl |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "io" |
| 6 | + |
| 7 | + "github.com/fastly/go-fastly/v10/fastly" |
| 8 | + |
| 9 | + "github.com/fastly/cli/pkg/argparser" |
| 10 | + fsterr "github.com/fastly/cli/pkg/errors" |
| 11 | + "github.com/fastly/cli/pkg/global" |
| 12 | +) |
| 13 | + |
| 14 | +// NewDescribeCommand returns a usable command registered under the parent. |
| 15 | +func NewDescribeCommand(parent argparser.Registerer, g *global.Data) *DescribeCommand { |
| 16 | + c := DescribeCommand{ |
| 17 | + Base: argparser.Base{ |
| 18 | + Globals: g, |
| 19 | + }, |
| 20 | + } |
| 21 | + c.CmdClause = parent.Command("describe", "Get the generated VCL for a particular service and version").Alias("get") |
| 22 | + |
| 23 | + // Required. |
| 24 | + c.RegisterFlag(argparser.StringFlagOpts{ |
| 25 | + Name: argparser.FlagVersionName, |
| 26 | + Description: argparser.FlagVersionDesc, |
| 27 | + Dst: &c.serviceVersion.Value, |
| 28 | + Required: true, |
| 29 | + }) |
| 30 | + |
| 31 | + // Optional. |
| 32 | + c.RegisterFlagBool(c.JSONFlag()) // --json |
| 33 | + c.RegisterFlag(argparser.StringFlagOpts{ |
| 34 | + Name: argparser.FlagServiceIDName, |
| 35 | + Description: argparser.FlagServiceIDDesc, |
| 36 | + Dst: &g.Manifest.Flag.ServiceID, |
| 37 | + Short: 's', |
| 38 | + }) |
| 39 | + c.RegisterFlag(argparser.StringFlagOpts{ |
| 40 | + Action: c.serviceName.Set, |
| 41 | + Name: argparser.FlagServiceName, |
| 42 | + Description: argparser.FlagServiceNameDesc, |
| 43 | + Dst: &c.serviceName.Value, |
| 44 | + }) |
| 45 | + |
| 46 | + return &c |
| 47 | +} |
| 48 | + |
| 49 | +// DescribeCommand calls the Fastly API to list appropriate resources. |
| 50 | +type DescribeCommand struct { |
| 51 | + argparser.Base |
| 52 | + argparser.JSONOutput |
| 53 | + |
| 54 | + serviceName argparser.OptionalServiceNameID |
| 55 | + serviceVersion argparser.OptionalServiceVersion |
| 56 | +} |
| 57 | + |
| 58 | +// Exec invokes the application logic for the command. |
| 59 | +func (c *DescribeCommand) Exec(_ io.Reader, out io.Writer) error { |
| 60 | + if c.Globals.Verbose() && c.JSONOutput.Enabled { |
| 61 | + return fsterr.ErrInvalidVerboseJSONCombo |
| 62 | + } |
| 63 | + |
| 64 | + serviceID, serviceVersion, err := argparser.ServiceDetails(argparser.ServiceDetailsOpts{ |
| 65 | + APIClient: c.Globals.APIClient, |
| 66 | + Manifest: *c.Globals.Manifest, |
| 67 | + Out: out, |
| 68 | + ServiceNameFlag: c.serviceName, |
| 69 | + ServiceVersionFlag: c.serviceVersion, |
| 70 | + VerboseMode: c.Globals.Flags.Verbose, |
| 71 | + }) |
| 72 | + if err != nil { |
| 73 | + c.Globals.ErrLog.AddWithContext(err, map[string]any{ |
| 74 | + "Service ID": serviceID, |
| 75 | + "Service Version": fsterr.ServiceVersion(serviceVersion), |
| 76 | + }) |
| 77 | + return err |
| 78 | + } |
| 79 | + |
| 80 | + input := c.constructInput(serviceID, fastly.ToValue(serviceVersion.Number)) |
| 81 | + |
| 82 | + o, err := c.Globals.APIClient.GetGeneratedVCL(input) |
| 83 | + if err != nil { |
| 84 | + c.Globals.ErrLog.AddWithContext(err, map[string]any{ |
| 85 | + "Service ID": serviceID, |
| 86 | + "Service Version": fastly.ToValue(serviceVersion.Number), |
| 87 | + }) |
| 88 | + return err |
| 89 | + } |
| 90 | + |
| 91 | + if ok, err := c.WriteJSON(out, o); ok { |
| 92 | + return err |
| 93 | + } |
| 94 | + |
| 95 | + if c.Globals.Verbose() { |
| 96 | + c.printVerbose(out, fastly.ToValue(serviceVersion.Number), o) |
| 97 | + } else { |
| 98 | + err = c.print(out, o) |
| 99 | + if err != nil { |
| 100 | + return err |
| 101 | + } |
| 102 | + } |
| 103 | + return nil |
| 104 | +} |
| 105 | + |
| 106 | +// constructInput transforms values parsed from CLI flags into an object to be used by the API client library. |
| 107 | +func (c *DescribeCommand) constructInput(serviceID string, serviceVersion int) *fastly.GetGeneratedVCLInput { |
| 108 | + var input fastly.GetGeneratedVCLInput |
| 109 | + |
| 110 | + input.ServiceID = serviceID |
| 111 | + input.ServiceVersion = serviceVersion |
| 112 | + |
| 113 | + return &input |
| 114 | +} |
| 115 | + |
| 116 | +// printVerbose displays the information returned from the API in a verbose |
| 117 | +// format. |
| 118 | +func (c *DescribeCommand) printVerbose(out io.Writer, serviceVersion int, v *fastly.VCL) { |
| 119 | + fmt.Fprintf(out, "Service Version: %d\n", serviceVersion) |
| 120 | + |
| 121 | + fmt.Fprintf(out, "\n") |
| 122 | + fmt.Fprintf(out, "Name: %s\n", fastly.ToValue(v.Name)) |
| 123 | + fmt.Fprintf(out, "Main: %t\n", fastly.ToValue(v.Main)) |
| 124 | + |
| 125 | + if v.CreatedAt != nil { |
| 126 | + fmt.Fprintf(out, "Created at: %s\n", v.CreatedAt) |
| 127 | + } |
| 128 | + if v.UpdatedAt != nil { |
| 129 | + fmt.Fprintf(out, "Updated at: %s\n", v.UpdatedAt) |
| 130 | + } |
| 131 | + if v.DeletedAt != nil { |
| 132 | + fmt.Fprintf(out, "Deleted at: %s\n", v.DeletedAt) |
| 133 | + } |
| 134 | + |
| 135 | + fmt.Fprintf(out, "Content: \n%s\n", fastly.ToValue(v.Content)) |
| 136 | +} |
| 137 | + |
| 138 | +// print the generated VCL. |
| 139 | +func (c *DescribeCommand) print(out io.Writer, v *fastly.VCL) error { |
| 140 | + fmt.Fprintf(out, "%s\n", fastly.ToValue(v.Content)) |
| 141 | + return nil |
| 142 | +} |
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